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Posts tagged year
4W POLY SOLAR POWER, FOR 12V SYSTEM, 25 YEAR WARRANTY, HIGHT EFFICIENCY, LOW PRICE,
Jan 5th
- Operatine Voltage: 17.5V
- Operatine Current: 0.23A
- Open-Circuit Voltage: 22V
- Short-circuit Current : 0.25A
- Max System Voltage: 600V
Item Description:
–Brand new 4W 17.5V solar power module panel.
–Aluminum frame surrounds and protects the glass and solar cells.
–Weatherproof and can withstand extreme heat and cold.
–Made by solar grade A silicon material.
–High anti reflective and transparency tempered glass.
–Junction on the back of panel with – / + leads
SALE Price: $ 15.99
Rating: 
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HOW DO YOU GET A 2 AND 6 YEAR OLD TO SAVE ELECTRICITY?
Dec 21st
Question by hot mama:
How do you get a 2 and 6 year old to save electricity?
I have over $ 100 electric bill and I know that it is just from being careless. They leave doors open, heaters and fans on, each light on when its still sunny out, tvs and personal on just to have them on, even the fridge left wide open. I feel like I am being a constant nag! I know that the 2 year old will not comprehend why but does anyone have any ideas on how to get them to do it (less at least)?
oh my am I REALLY supposed to follow my six year old into the lavatory and sit in his bedroom with him all day. I have a playroom that is safe for children to play in so I dont have to follow them around all day and they dont have to sit in the kitchen with me when I cooking hot food. Okay any one know of any games, songs, rewards for remembering, new ways of explaining to tiny ones why to turn off the lights. I guess that is what I am asking.
Parenting classes? cause I asked for ideas on teaching children to conserve energy? I am a certified daycare provider, I have taken plenty of classes.
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WHAT IS THE WAY OF CALCULATING (OR SELECTING) THE SIZE OF WIND TURBINE USING HOURLY WIND SPEED OF WHOLE YEAR?
Sep 27th
Question by chandana:
What is the way of calculating (or selecting) the size of wind turbine using hourly wind speed of whole year?
I have wind speed data and direction of wind speed measured hourly through the year. I want to choose the optimum wind turbine size. For that I should know how to compute the wind energy which can be extracted.
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LOVE THE ENERGY SAVING LIGHT BULBS, BUT A COUPLE OF HAVE EXPLODED AND/OR BURNED OUT IN LESS THAN A YEAR. WHY?
Sep 3rd
Question by Emily Dew:
Love the energy saving light bulbs, but a couple of have exploded and/or burned out in less than a year. Why?
Are these energy saving light bulbs more hazardous than they are worth? The exploding aspect worries me, though I cannot find much written about it. I am seriously considering replacing all of the ones in my home with traditional bulbs, but I know that is going to drive my electric bill up. What are your thoughts or experiences with these bulbs? Thanks!
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I AM CONSIDERING A SOLAR PANELS. HOW CAN I TELL IF MY AREA GETS ENOUGH SOLAR ENERGY A YEAR TO BE WORTHWHILE?
Aug 18th
Question by evelina rolon:
I am considering a solar panels. How can I tell if my area gets enough solar energy a year to be worthwhile?
I want to know how I can determine my area’s (Rochester NY) yearly solar energy output to see if it would make economic sense to install solar panels. Any websites or resources where I can look?
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HOW MANY HOMES CAN ONE WIND TURBINE POWER IN A YEAR?
Aug 14th
Question by Billy Bob:
How many homes can one wind turbine power in a year?
I know it depends on the region and I know that wind speeds aren’t constant so there is not a definite number, but on average, how many homes could one wind turbine power. reliable source please. I am having an argument with one of my friends. He thinks that wind turbines aren’t worth putting up and they do not produce a substantial amount of energy, of course I disagree.
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HOW MUCH ELECTRICAL ENERGY (IN KWH) CAN THE WIND TURBINE GENERATE IN A YEAR?
Jul 27th
Question by BishopSherry:
How much electrical energy (in kWh) can the wind turbine generate in a year?
Assume a wind turbine with a hub 50.0 m above the ground, a rotor diameter of 50.0 m, and a wind-power conversion efficiency of 25%. The turbine operates in an area with an average wind-power density of 500 watts/m2 at 50 m altitude. How much electrical energy (in kWh) can the wind turbine generate in a year?
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I AM CONSIDERING A SOLAR PANELS. HOW CAN I TELL IF MY AREA GETS ENOUGH SOLAR ENERGY A YEAR TO BE WORTHWHILE?
Jan 18th
I want to know how I can determine my area’s (Rochester NY) yearly solar energy output to see if it would make economic sense to install solar panels. Any websites or resources where I can look?